Where to sell a mildly successful free hosting site?

Hi all, I've tried selling my hosting site, which was pretty successful with 33k uniques/month. I'm not sure to go with flippa, or whether it would be better to just sell it privately? I'm not going to sell it for big bucks, I'm just moving on to new ventures (coding). I've never tried adverts on it, but these are able to be implemented now. I've purged most of the users accounts for inactivity, so only the recent ones who joined are on there now. Can anyone suggest a decent site to sell it on?

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